In 1966, a revolutionary security system was invented by Brown with the assistance of her husband. This groundbreaking invention consisted of four peepholes, a sliding camera, television monitors, and two-way microphones, ultimately creating a closed-circuit television system for surveillance, now commonly known as CCTV. This innovation allowed for unprecedented levels of security and monitoring, providing a sense of safety and peace of mind to countless individuals and businesses. The impact of this invention continues to be felt today, as CCTV systems are widely used for both personal and professional security purposes.